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Intangible assets - Gross Value (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Intangible assets |  |  |
Value, at the beginning of the year | $ 7,592 | $ 7,659 |
CAPEX | 1,238 | 1,754 | $ 3,704
Value, at the end of the year | 7,098 | 7,592 | 7,659
SAC | Fixed services |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 96 |  |
Value, at the end of the year | 77 | 96 |
SAC | Mobile Services |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 1,427 |  |
Value, at the end of the year | 1,140 | 1,427 |
Service connection or habilitation costs |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 119 |  |
Value, at the end of the year | 136 | 119 |
3G/4G licenses |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 5,105 |  |
Value, at the end of the year | 4,780 | 5,105 |
PCS license (Argentina) |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 588 |  |
Value, at the end of the year | 588 | 588 |
PCS and Band B (Paraguay) |  |  |
Intangible assets |  |  |
Value, at the end of the year | 3 |  |
Rights of use |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 244 |  |
Value, at the end of the year | 226 | 244 |
Exclusivity agreements |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 12 |  |
Value, at the end of the year | 11 | 12 |
Customer relationships |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 1 |  |
Value, at the end of the year | 135 | 1 |
Goodwill |  |  |
Intangible assets |  |  |
Value, at the end of the year | 2 |  |
Gross carrying value |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 11,788 | 10,851 |
Acquisition Tuves Paraguay | 190 |  |
CAPEX | 1,238 | 1,754 |
Currency translation adjustments | 300 | 248 |
Decreases | (1,535) | (1,065) |
Value, at the end of the year | 11,981 | 11,788 | 10,851
Gross carrying value | SAC | Fixed services |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 226 | 234 |
CAPEX | 87 | 137 |
Decreases | (169) | (145) |
Value, at the end of the year | 144 | 226 | 234
Gross carrying value | SAC | Mobile Services |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 2,838 | 2,157 |
Acquisition Tuves Paraguay | 55 |  |
CAPEX | 1,081 | 1,544 |
Currency translation adjustments | 35 | 30 |
Decreases | (1,295) | (893) |
Value, at the end of the year | 2,714 | 2,838 | 2,157
Gross carrying value | Service connection or habilitation costs |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 222 | 208 |
CAPEX | 50 | 41 |
Decreases | (30) | (27) |
Value, at the end of the year | 242 | 222 | 208
Gross carrying value | 3G/4G licenses |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 5,786 | 5,786 |
Value, at the end of the year | 5,786 | 5,786 | 5,786
Gross carrying value | PCS license (Argentina) |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 658 | 658 |
Value, at the end of the year | 658 | 658 | 658
Gross carrying value | PCS and Band B (Paraguay) |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 951 | 774 |
CAPEX | 3 |  |
Currency translation adjustments | 202 | 177 |
Value, at the end of the year | 1,156 | 951 | 774
Gross carrying value | Rights of use |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 463 | 425 |
Acquisition Tuves Paraguay | 4 |  |
CAPEX | 17 | 32 |
Currency translation adjustments | 7 | 6 |
Decreases | (41) |  |
Value, at the end of the year | 450 | 463 | 425
Gross carrying value | Exclusivity agreements |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 41 | 41 |
Value, at the end of the year | 41 | 41 | 41
Gross carrying value | Customer relationships |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 2 | 2 |
Acquisition Tuves Paraguay | 129 |  |
Currency translation adjustments | 15 |  |
Value, at the end of the year | 146 | 2 | 2
Gross carrying value | Goodwill |  |  |
Intangible assets |  |  |
Acquisition Tuves Paraguay | 2 |  |
Value, at the end of the year | 2 |  |
Gross carrying value | Software developed for internal use |  |  |
Intangible assets |  |  |
Value, at the beginning of the year | 601 | 566 |
Currency translation adjustments | 41 | 35 |
Value, at the end of the year | 642 | $ 601 | $ 566
Tuves Paraguay | Customer relationships |  |  |
Intangible assets |  |  |
Value, at the end of the year | $ 134 |  |

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